Appolo Event Dispatcher
Fast and simple event dispatcher for node.js written in typescript.
Installation:
npm install appolo-event-dispatcher --save
Usage:
; { super; } let eventHandler = ; eventHandler; eventHandler; //or with promiselet value = await eventHandler;
API
on(event,callback,[scope])
add an event listener
event
- event name.callback
- callback function that will triggered on event name.scope
- optional, the scope of thecallback
function default:this
.
once(event,[callback],[scope])
add an event listener will be called only once if no callback passed a promise will be returned
event
- event name.callback
- callback function that will triggered on event name.scope
- optional, the scope of thecallback
function default:this
.
un(event,callback,[scope])
remove an event listener. All the arguments must be ===
to the onces used in the on
method, or else it won`t be removed.
event
- event name.callback
- callback function.scope
- optional, the scope of the callback function.
fireEvent(event,[arguments])
fireEvent - triggers the callback functions of a given event name
eventName
- name of the eventarguments
- all otherarguments
will be passed to thecallback
function
removeAllListeners()
removes all event listeners
removeListenersByScope(scope)
removes all event listeners by given scope
hasListener(event,callback,[scope]):boolean
return true if listener exists
License
MIT